Sound Damping

[DJPremier]

Afternoon all..

I'm replacing the sound deadening in my Mk2. The old original stuff has a top layer of hard-ish black bituminous coating over the feltish underlayer, and this has cracked and disintegrated, and felty stuff gone flat etc.

The replacement is the kit of padding from Newton Commercial. The new kit is thick and felty, but doesn't have the layer of bituminous stuff. I'm wondering if I should do some extra mass loading of the floor, bulkhead and tunnel with one of the common self adhesive damping products, before adding the new felt Newton kit on top of that. I'm not after the ultimate quiet or a rattlree sub bass monster, just after the same or better level of interior quiet as original, though better is good ! Just trying to get it right before I start sticking things down and putting the interior back in. Doing it right and only once would be nice.

I'm after your opinions and experiences on this please to inform my own decisions on this . I know there is no definitive solution ..

Cheers all.

Dave V

[litlekris]

did you take up the factory bitumen from the floor pan? if you haven't then i wouldn't worry.. if you have then a cheap alternative to dynomat is flashing tape from b+q etc..

[Mr Funk]

Remind me tomorrow about this!
Been at the rugby all day so a little "confused"

I should be able to rip it out of the monza if you want to go down that route.

From experience I've used dynamat extreme and it is superb. I know you mentioned that yo don't want to go down that route but really keep it in mind. These cars are 30 years old, technology has advance a lot since then, if you've ever heard my car from the outside and then from the inside you'll agree.

[DJPremier]

The original bituminous stuff that's direct to metal is all there, and staying. Good point Mr F about modern materials. That's essentially where I'm heading I think, though perhaps not full blanket coverage, at associated £££ . I,ve seen the Bandit build thread, with what looks like a lot of nice ICE in there. I have no additional power amps and hungry subwoofers to support. Looks like some additional modern sticky stuff in strategic places would be worth doing. Gotta keep the budget in mind somewhere too though..

What was the Monza reference to btw ? Pre-loved sound insulation offer ?

With the weather the way it is, the biggest challenge seems to be dry enough weather and time to do any of it !


..DaveV..

[Nate]

go to scrapyard and get plundering! i've used the sand filled bubblewrap type stuff from passats on a few cars, and it's brilliant and cheap, coz the scrappy usually doesn't even know what it is. particularly if it's rolled up and at the bottom of my toolbox